Spring devices – Spring panel – Composite springs of diverse material – e.g. – metal and...
Patent
1976-10-26
1978-04-04
Marbert, James B.
Spring devices
Spring panel
Composite springs of diverse material, e.g., metal and...
5351, 297451, A47C 2300
Patent
active
040822567
ABSTRACT:
A seat back structure is provided that includes a frame and spring assembly having formed wire spring members supported on the frame, and a resilient pad is mounted over the formed wire spring members and has recesses in its inner surfaces which constrain movements of the wire spring members longitudinally and transversely relative to one another.
REFERENCES:
patent: 2897879 (1959-08-01), Brown et al.
patent: 3087718 (1963-04-01), Brown
patent: 3800343 (1974-04-01), Frachte
Hoover Ball and Bearing Company
Marbert James B.
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